Concentration of Ownership and Management (high) The organizational structure of the KASTEN group is centered around the parent company, KASTEN HOLDING s. r. o. The original founder, Ing. Aleš Kocourek, is identified as the sole owner and simultaneously the sole director (jednatel) of the parent company. This concentration of ownership and executive control presents a significant key-man risk and a complete lack of independent governance oversight for the entire holding structure.